[INFO] cloning repository https://github.com/INDA24PlusPlus/angun-chess-gui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/INDA24PlusPlus/angun-chess-gui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FINDA24PlusPlus%2Fangun-chess-gui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FINDA24PlusPlus%2Fangun-chess-gui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aad353b9c470e71767e0c8c3c0f411a28f7a69c3
[INFO] checking INDA24PlusPlus/angun-chess-gui against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FINDA24PlusPlus%2Fangun-chess-gui" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/INDA24PlusPlus/angun-chess-gui
[INFO] finished tweaking git repo https://github.com/INDA24PlusPlus/angun-chess-gui
[INFO] tweaked toml for git repo https://github.com/INDA24PlusPlus/angun-chess-gui written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/INDA24PlusPlus/angun-chess-gui on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/INDA24PlusPlus/angun-chess-gui already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/INDA24PlusPlus/skye-chess.git`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "bb124005c786ee4219c2a4c2a9febe07fc4a37504eba7f0c3d72992ad23aedcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb124005c786ee4219c2a4c2a9febe07fc4a37504eba7f0c3d72992ad23aedcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bb124005c786ee4219c2a4c2a9febe07fc4a37504eba7f0c3d72992ad23aedcb" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb124005c786ee4219c2a4c2a9febe07fc4a37504eba7f0c3d72992ad23aedcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "bb124005c786ee4219c2a4c2a9febe07fc4a37504eba7f0c3d72992ad23aedcb" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking pollster v0.3.0
[INFO] [stderr]     Checking skye-chess v0.1.0 (https://github.com/INDA24PlusPlus/skye-chess.git#6b846d7e)
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[INFO] [stdout] warning: unused import: `DrawParam`
[INFO] [stdout]  --> src/main.rs:6:53
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ggez::graphics::{self, Canvas, Color, DrawMode, DrawParam, Drawable, Image, Mesh, Rect}; // Ensure `graphics` and `Color` are imp...
[INFO] [stdout]   |                                                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DrawParam`
[INFO] [stdout]  --> src/main.rs:6:53
[INFO] [stdout]   |
[INFO] [stdout] 6 | use ggez::graphics::{self, Canvas, Color, DrawMode, DrawParam, Drawable, Image, Mesh, Rect}; // Ensure `graphics` and `Color` are imp...
[INFO] [stdout]   |                                                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece_n` is never read
[INFO] [stdout]    --> src/temp_mod.rs:362:17
[INFO] [stdout]     |
[INFO] [stdout] 362 |                 piece_n.pos=to_c;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece_n` is never read
[INFO] [stdout]    --> src/temp_mod.rs:388:17
[INFO] [stdout]     |
[INFO] [stdout] 388 |                 piece_n.pos=to_c;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece_n` is never read
[INFO] [stdout]    --> src/temp_mod.rs:398:17
[INFO] [stdout]     |
[INFO] [stdout] 398 |                 piece_n.pos=piece_n.prev_pos;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece` is never read
[INFO] [stdout]    --> src/temp_mod.rs:411:13
[INFO] [stdout]     |
[INFO] [stdout] 411 |             piece.kind=n_kind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/temp_mod.rs:453:21
[INFO] [stdout]     |
[INFO] [stdout] 453 | fn hash_board_state(mut board: ChessBoard)->[u8;64]{
[INFO] [stdout]     |                     ----^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]    --> src/temp_mod.rs:456:9
[INFO] [stdout]     |
[INFO] [stdout] 456 |     for mut square in board_state {
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/temp_mod.rs:804:30
[INFO] [stdout]     |
[INFO] [stdout] 804 | fn simulate_pice_moves_check(mut board:ChessBoard, piece:ChessPiece)->bool{
[INFO] [stdout]     |                              ----^^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `piece`
[INFO] [stdout]    --> src/temp_mod.rs:804:52
[INFO] [stdout]     |
[INFO] [stdout] 804 | fn simulate_pice_moves_check(mut board:ChessBoard, piece:ChessPiece)->bool{
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]    --> src/temp_mod.rs:807:9
[INFO] [stdout]     |
[INFO] [stdout] 807 |     for mut square in board_state {
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/temp_mod.rs:822:9
[INFO] [stdout]     |
[INFO] [stdout] 822 |     let mut pieces=board.pieces;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece_n` is never read
[INFO] [stdout]    --> src/temp_mod.rs:826:13
[INFO] [stdout]     |
[INFO] [stdout] 826 |             piece_n.pos=to_c;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/main.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn update(&mut self, ctx: &mut Context) -> GameResult { 
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece_n` is never read
[INFO] [stdout]    --> src/temp_mod.rs:362:17
[INFO] [stdout]     |
[INFO] [stdout] 362 |                 piece_n.pos=to_c;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `scale_factor` is never read
[INFO] [stdout]    --> src/main.rs:143:32
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let mut scale_factor = 0.0;
[INFO] [stdout]     |                                ^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 209 |                     scale_factor = SQUARE_SIZE / image.unwrap().width() as f32;
[INFO] [stdout]     |                     ---------------------------------------------------------- `scale_factor` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `highlight` is never read
[INFO] [stdout]    --> src/main.rs:150:35
[INFO] [stdout]     |
[INFO] [stdout] 150 |           let mut highlight: Mesh = Mesh::new_rectangle(
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 151 | |             ctx,
[INFO] [stdout] 152 | |             DrawMode::stroke(4.0),
[INFO] [stdout] 153 | |             Rect::new(0 as f32 * SQUARE_SIZE, 0 as f32 * SQUARE_SIZE,
[INFO] [stdout] 154 | |                  SQUARE_SIZE, SQUARE_SIZE),
[INFO] [stdout] 155 | |             highlight_color)?;
[INFO] [stdout]     | |_____________________________^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 276 |               highlight = Mesh::new_rectangle(
[INFO] [stdout]     |               --------- `highlight` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `image` is never read
[INFO] [stdout]    --> src/main.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let mut image = self.images.get("no_image");
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 208 |                     image = self.images.get(image_string.as_str());
[INFO] [stdout]     |                     ---------------------------------------------- `image` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `square` is never read
[INFO] [stdout]    --> src/main.rs:167:26
[INFO] [stdout]     |
[INFO] [stdout] 167 |           let mut square = Mesh::new_rectangle(
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 168 | |             ctx,
[INFO] [stdout] 169 | |             DrawMode::fill(),
[INFO] [stdout] 170 | |             Rect::new(0.0, 0.0, 0.0, 0.0),  
[INFO] [stdout] 171 | |             Color::from_rgb(0, 0, 0),
[INFO] [stdout] 172 | |         )?;
[INFO] [stdout]     | |__________^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 189 |                   square = Mesh::new_rectangle(ctx, DrawMode::fill(), 
[INFO] [stdout]     |                   ------ `square` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `color` is never read
[INFO] [stdout]    --> src/main.rs:179:33
[INFO] [stdout]     |
[INFO] [stdout] 179 |                 let mut color = Color::from_rgb(0, 0, 0);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 185 |                     color = green_square_color;
[INFO] [stdout]     |                     -------------------------- `color` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `image_string` is never read
[INFO] [stdout]    --> src/main.rs:202:40
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let mut image_string = "".to_string();
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 207 |                     image_string = match_piece_with_image_key(*piece.unwrap()); //Dereference with *
[INFO] [stdout]     |                     ------------ `image_string` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:312:13
[INFO] [stdout]     |
[INFO] [stdout] 312 |         let mut canvas = Canvas::from_frame(_ctx, Color::WHITE);
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece_n` is never read
[INFO] [stdout]    --> src/temp_mod.rs:388:17
[INFO] [stdout]     |
[INFO] [stdout] 388 |                 piece_n.pos=to_c;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece_n` is never read
[INFO] [stdout]    --> src/temp_mod.rs:398:17
[INFO] [stdout]     |
[INFO] [stdout] 398 |                 piece_n.pos=piece_n.prev_pos;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `piece` is never read
[INFO] [stdout]    --> src/temp_mod.rs:411:13
[INFO] [stdout]     |
[INFO] [stdout] 411 |             piece.kind=n_kind;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/temp_mod.rs:453:21
[INFO] [stdout]     |
[INFO] [stdout] 453 | fn hash_board_state(mut board: ChessBoard)->[u8;64]{
[INFO] [stdout]     |                     ----^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]    --> src/temp_mod.rs:456:9
[INFO] [stdout]     |
[INFO] [stdout] 456 |     for mut square in board_state {
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitboard_to_positions` is never used
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn bitboard_to_positions(bitboard: u64) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `position_to_bitboard` is never used
[INFO] [stdout]   --> src/main.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn position_to_bitboard(pos: u32) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `just_moved_piece`, `highlighted_squares`, and `is_highlighting` are never read
[INFO] [stdout]   --> src/main.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | struct ChessGame{
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 87 |     just_moved_piece: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 88 |     highlighted_squares: Vec<(usize, usize)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 89 |     is_highlighting: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `has_moved` is never read
[INFO] [stdout]   --> src/temp_mod.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ChessPiece {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub has_moved: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChessPiece` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rule_repetition` is never read
[INFO] [stdout]   --> src/temp_mod.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct ChessBoard {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 92 |     rule_repetition: [[u8;64];50]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChessBoard` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `revert_simulate_move_piece` and `promote_piece` are never used
[INFO] [stdout]    --> src/temp_mod.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout]  94 | impl ChessBoard{
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 395 |     fn revert_simulate_move_piece(&mut self)->bool{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 405 |     fn promote_piece(&mut self, pos_c:u64, n_kind:ChessPieceKind)->bool{
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_board_state` is never used
[INFO] [stdout]    --> src/temp_mod.rs:453:4
[INFO] [stdout]     |
[INFO] [stdout] 453 | fn hash_board_state(mut board: ChessBoard)->[u8;64]{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_capture_map` is never used
[INFO] [stdout]    --> src/temp_mod.rs:698:4
[INFO] [stdout]     |
[INFO] [stdout] 698 | fn get_capture_map(col:ChessColour,board:ChessBoard)->u64{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_checked` is never used
[INFO] [stdout]    --> src/temp_mod.rs:713:4
[INFO] [stdout]     |
[INFO] [stdout] 713 | fn is_checked(col:ChessColour,board:ChessBoard)->bool{
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_long_castle_move` is never used
[INFO] [stdout]    --> src/temp_mod.rs:722:4
[INFO] [stdout]     |
[INFO] [stdout] 722 | fn get_long_castle_move(piece:ChessPiece, board:ChessBoard)->bool{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_short_castle_move` is never used
[INFO] [stdout]    --> src/temp_mod.rs:736:4
[INFO] [stdout]     |
[INFO] [stdout] 736 | fn get_short_castle_move(piece:ChessPiece, board:ChessBoard)->bool{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_u64_pos` is never used
[INFO] [stdout]    --> src/temp_mod.rs:775:8
[INFO] [stdout]     |
[INFO] [stdout] 775 | pub fn get_u64_pos(rank:u8, file:u8)->u64{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `skye-chess`
[INFO] [stdout] warning: function `can_promote` is never used
[INFO] [stdout]    --> src/temp_mod.rs:794:8
[INFO] [stdout]     |
[INFO] [stdout] 794 | pub fn can_promote(pos:u64, board:ChessBoard)->bool{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  --> Cargo.toml:4:15
[INFO] [stdout] warning: function `simulate_pice_moves_check` is never used
[INFO] [stdout]    --> src/temp_mod.rs:804:4
[INFO] [stdout]     |
[INFO] [stdout] 804 | fn simulate_pice_moves_check(mut board:ChessBoard, piece:ChessPiece)->bool{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] warning: function `move_piece` is never used
[INFO] [stdout]    --> src/temp_mod.rs:817:8
[INFO] [stdout]     |
[INFO] [stdout] 817 | pub fn move_piece(mut board:ChessBoard, from_c:u64, to_c:u64)->(ChessBoard,bool){
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 4 | [dependencies.skye-chess]
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/temp_mod.rs:804:30
[INFO] [stdout]     |
[INFO] [stdout] 804 | fn simulate_pice_moves_check(mut board:ChessBoard, piece:ChessPiece)->bool{
[INFO] [stdout]     |                              ----^^^^^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   |               ^^^^^^^^^^^
[INFO] [stdout] warning: unused variable: `piece`
[INFO] [stdout]    --> src/temp_mod.rs:804:52
[INFO] [stdout]     |
[INFO] [stdout] 804 | fn simulate_pice_moves_check(mut board:ChessBoard, piece:ChessPiece)->bool{
[INFO] [stdout]     |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_piece`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] warning: unused variable: `square`
[INFO] [stdout]    --> src/temp_mod.rs:807:9
[INFO] [stdout]     |
[INFO] [stdout] 807 |     for mut square in board_state {
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_square`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/temp_mod.rs:822:9
[INFO] [stdout]     |
[INFO] [stdout] 822 |     let mut pieces=board.pieces;
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] help: consider removing the dependency on `skye-chess`
[INFO] [stdout] warning: value assigned to `piece_n` is never read
[INFO] [stdout]    --> src/temp_mod.rs:826:13
[INFO] [stdout]     |
[INFO] [stdout] 826 |             piece_n.pos=to_c;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: `skye-chess-gui-angun` (manifest) generated 1 warning
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/main.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn update(&mut self, ctx: &mut Context) -> GameResult { 
[INFO] [stdout]     |                          ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 31s
[INFO] [stdout] warning: value assigned to `scale_factor` is never read
[INFO] [stdout]    --> src/main.rs:143:32
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let mut scale_factor = 0.0;
[INFO] [stdout]     |                                ^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 209 |                     scale_factor = SQUARE_SIZE / image.unwrap().width() as f32;
[INFO] [stdout]     |                     ---------------------------------------------------------- `scale_factor` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `highlight` is never read
[INFO] [stdout]    --> src/main.rs:150:35
[INFO] [stdout]     |
[INFO] [stdout] 150 |           let mut highlight: Mesh = Mesh::new_rectangle(
[INFO] [stdout]     |  ___________________________________^
[INFO] [stdout] 151 | |             ctx,
[INFO] [stdout] 152 | |             DrawMode::stroke(4.0),
[INFO] [stdout] 153 | |             Rect::new(0 as f32 * SQUARE_SIZE, 0 as f32 * SQUARE_SIZE,
[INFO] [stdout] 154 | |                  SQUARE_SIZE, SQUARE_SIZE),
[INFO] [stdout] 155 | |             highlight_color)?;
[INFO] [stdout]     | |_____________________________^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 276 |               highlight = Mesh::new_rectangle(
[INFO] [stdout]     |               --------- `highlight` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `image` is never read
[INFO] [stdout]    --> src/main.rs:160:25
[INFO] [stdout]     |
[INFO] [stdout] 160 |         let mut image = self.images.get("no_image");
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 208 |                     image = self.images.get(image_string.as_str());
[INFO] [stdout]     |                     ---------------------------------------------- `image` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `square` is never read
[INFO] [stdout]    --> src/main.rs:167:26
[INFO] [stdout]     |
[INFO] [stdout] 167 |           let mut square = Mesh::new_rectangle(
[INFO] [stdout]     |  __________________________^
[INFO] [stdout] 168 | |             ctx,
[INFO] [stdout] 169 | |             DrawMode::fill(),
[INFO] [stdout] 170 | |             Rect::new(0.0, 0.0, 0.0, 0.0),  
[INFO] [stdout] 171 | |             Color::from_rgb(0, 0, 0),
[INFO] [stdout] 172 | |         )?;
[INFO] [stdout]     | |__________^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 189 |                   square = Mesh::new_rectangle(ctx, DrawMode::fill(), 
[INFO] [stdout]     |                   ------ `square` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `color` is never read
[INFO] [stdout]    --> src/main.rs:179:33
[INFO] [stdout]     |
[INFO] [stdout] 179 |                 let mut color = Color::from_rgb(0, 0, 0);
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 185 |                     color = green_square_color;
[INFO] [stdout]     |                     -------------------------- `color` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `image_string` is never read
[INFO] [stdout]    --> src/main.rs:202:40
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let mut image_string = "".to_string();
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 207 |                     image_string = match_piece_with_image_key(*piece.unwrap()); //Dereference with *
[INFO] [stdout]     |                     ------------ `image_string` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |         canvas.finish(ctx);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 287 |         let _ = canvas.finish(ctx);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:340:9
[INFO] [stdout]     |
[INFO] [stdout] 340 |         canvas.finish(_ctx);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 340 |         let _ = canvas.finish(_ctx);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:312:13
[INFO] [stdout]     |
[INFO] [stdout] 312 |         let mut canvas = Canvas::from_frame(_ctx, Color::WHITE);
[INFO] [stdout]     |             ----^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitboard_to_positions` is never used
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn bitboard_to_positions(bitboard: u64) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `position_to_bitboard` is never used
[INFO] [stdout]   --> src/main.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn position_to_bitboard(pos: u32) -> u64 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `just_moved_piece`, `highlighted_squares`, and `is_highlighting` are never read
[INFO] [stdout]   --> src/main.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | struct ChessGame{
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 87 |     just_moved_piece: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 88 |     highlighted_squares: Vec<(usize, usize)>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 89 |     is_highlighting: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `has_moved` is never read
[INFO] [stdout]   --> src/temp_mod.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct ChessPiece {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub has_moved: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChessPiece` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_colour_hash` is never used
[INFO] [stdout]   --> src/temp_mod.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn get_colour_hash(col:ChessColour)->u8{
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_piece_hash` is never used
[INFO] [stdout]   --> src/temp_mod.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn get_piece_hash(p_kind:ChessPieceKind)->u8{
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_piece` is never used
[INFO] [stdout]   --> src/temp_mod.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn hash_piece(piece: ChessPiece)->u16{
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `rule_repetition` is never read
[INFO] [stdout]   --> src/temp_mod.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub struct ChessBoard {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 92 |     rule_repetition: [[u8;64];50]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ChessBoard` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `revert_simulate_move_piece` and `promote_piece` are never used
[INFO] [stdout]    --> src/temp_mod.rs:395:8
[INFO] [stdout]     |
[INFO] [stdout]  94 | impl ChessBoard{
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 395 |     fn revert_simulate_move_piece(&mut self)->bool{
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 405 |     fn promote_piece(&mut self, pos_c:u64, n_kind:ChessPieceKind)->bool{
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_board_state` is never used
[INFO] [stdout]    --> src/temp_mod.rs:453:4
[INFO] [stdout]     |
[INFO] [stdout] 453 | fn hash_board_state(mut board: ChessBoard)->[u8;64]{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_capture_map` is never used
[INFO] [stdout]    --> src/temp_mod.rs:698:4
[INFO] [stdout]     |
[INFO] [stdout] 698 | fn get_capture_map(col:ChessColour,board:ChessBoard)->u64{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_checked` is never used
[INFO] [stdout]    --> src/temp_mod.rs:713:4
[INFO] [stdout]     |
[INFO] [stdout] 713 | fn is_checked(col:ChessColour,board:ChessBoard)->bool{
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_long_castle_move` is never used
[INFO] [stdout]    --> src/temp_mod.rs:722:4
[INFO] [stdout]     |
[INFO] [stdout] 722 | fn get_long_castle_move(piece:ChessPiece, board:ChessBoard)->bool{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_short_castle_move` is never used
[INFO] [stdout]    --> src/temp_mod.rs:736:4
[INFO] [stdout]     |
[INFO] [stdout] 736 | fn get_short_castle_move(piece:ChessPiece, board:ChessBoard)->bool{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_rank_u64` is never used
[INFO] [stdout]    --> src/temp_mod.rs:752:4
[INFO] [stdout]     |
[INFO] [stdout] 752 | fn get_rank_u64(pos:u64)->u8{
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_file_u64` is never used
[INFO] [stdout]    --> src/temp_mod.rs:764:4
[INFO] [stdout]     |
[INFO] [stdout] 764 | fn get_file_u64(pos:u64)->u8{
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_u64_pos` is never used
[INFO] [stdout]    --> src/temp_mod.rs:775:8
[INFO] [stdout]     |
[INFO] [stdout] 775 | pub fn get_u64_pos(rank:u8, file:u8)->u64{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_promote` is never used
[INFO] [stdout]    --> src/temp_mod.rs:794:8
[INFO] [stdout]     |
[INFO] [stdout] 794 | pub fn can_promote(pos:u64, board:ChessBoard)->bool{
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simulate_pice_moves_check` is never used
[INFO] [stdout]    --> src/temp_mod.rs:804:4
[INFO] [stdout]     |
[INFO] [stdout] 804 | fn simulate_pice_moves_check(mut board:ChessBoard, piece:ChessPiece)->bool{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `move_piece` is never used
[INFO] [stdout]    --> src/temp_mod.rs:817:8
[INFO] [stdout]     |
[INFO] [stdout] 817 | pub fn move_piece(mut board:ChessBoard, from_c:u64, to_c:u64)->(ChessBoard,bool){
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |         canvas.finish(ctx);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 287 |         let _ = canvas.finish(ctx);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:340:9
[INFO] [stdout]     |
[INFO] [stdout] 340 |         canvas.finish(_ctx);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 340 |         let _ = canvas.finish(_ctx);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nix v0.29.0, winit v0.28.7
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "bb124005c786ee4219c2a4c2a9febe07fc4a37504eba7f0c3d72992ad23aedcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb124005c786ee4219c2a4c2a9febe07fc4a37504eba7f0c3d72992ad23aedcb", kill_on_drop: false }`
[INFO] [stdout] bb124005c786ee4219c2a4c2a9febe07fc4a37504eba7f0c3d72992ad23aedcb
